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BMW reveals M4 safety car with innovating water injection system [w/video]

Racing series don't just pick their safety cars at random, or use just whatever car is lying around. These days the car that sets the pace at the front of the pack is typically provided through consideration by a sponsor. In the MotoGP series, that's BMW and its M division, which have served up the Official Car of MotoGP since 1999. What you're looking at is the latest, and it packs some innovative technology on board. Aside from the matte black wrap with BMW's iconic striped livery, upgraded aero kit, retrofitted interior and emergency equipment, this BMW M4 coupe packs a new injection system under the hood. Only instead of injecting fuel, it injects water into the combustion chamber – something that wouldn't usually be recommended, but BMW insists actually aids in the combustion process. The idea is that the temperature of the air being mixed with the fuel inside the engine is usually hotter than ideal, so the system injects a fine mist of water into the collector in order to reduce the air's temperature... sort of like one of those hydrating misters at an amusement park or outdoor mall, but in an even hotter environment. The system brings the temperature of the air down to a more optimal temperature, helping it combust better. The process is said to yield a number of positive effects. For one, it reduces knocking. For another, it can make more out of lower-octane fuel where higher octane isn't available. It also can control the adverse effects of higher ambient temperature on the combustion process. But most of all, it increases output and reduce fuel consumption by around eight percent. Whether that eight percent is worth the added weight of the system – particularly with water pump and a 1.3-gallon tank in the trunk – is up for debate. But we'd imagine that the Bavarian engineers have weighed very carefully. Of course there's also the matter of refilling the water tank, which BMW says would be carried out whenever the safety car is refueled, but in real-world conditions would only necessitate attention once every five top-ups at the gas station. By now you might have guessed that BMW probably didn't develop this system just for the MotoGP safety car, and isn't planning on keeping it confined to the racetrack. Instead it's being tested and demonstrated on the safety car before being rolled out on production models in the future.

Creative minds build lightweight Lambos and Bugattis with cardboard and pedals

As manufacturers continue their quests to reduce the weight of their vehicles, they switch out heavy steel for lighter materials such as aluminum, carbon fiber, titanium, and sometimes even magnesium. But they've been ignoring a cheap alternative that is widely available: cardboard. Leave it to two visionaries from Vietnam to crack the code and build supercars and superbikes out of the versatile paper product. Vietnamese YouTube channel NHET TV, via CarScoops, might only have a year under its belt, but in that short amount of time, it has amassed more than 350,000 subscribers. What initially started out as a random collection of harmless pranks, trolls, and makeshift time-killers has blossomed into an entertaining channel of ultra-low-budget car and motorcycle builds.  The first video posted is a paper plane competition, but the second video shows the first appearance of a vehicle, a Ducati Panigale made out of cardboard and a bicycle. This isn't like Paper Mario with a two-dimensional silhouette, it's a close-enough three-dimensional replica. That project was admittedly pretty rough, but the work has only improved as the channel has matured.  Throughout the past year, NHET TV has stuck with high-performance transportation for inspiration. They've built projects that mimic a Lamborghini Sian, a Lamborghini Aventador SVJ, a Ferrari LaFerrari FXX K, a Bugatti Chiron, a BMW S 1000 RR, and a Yamaha YZF-R6, among others. Some of the builds, such as the Bugatti, go beyond the typical cardboard-body-on-bicycle-frame. As seen in the video below, the NHET TV built a tubular frame for the car using spare bike parts that they welded together. The Bug even has a custom steering column and steering wheel, though the high-quality model continues to use bike chains and pedals for power. The SVJ might be the most advanced vehicle, as it has a real engine for power and has custom reverse gearing. These guys are creating fun out of the limited resources they do have, and that's what right now is all about. Enjoy the videos below and watch more on the full NHET TV channel.

Daily Driver: 2016 BMW X1

Daily Driver videos are micro-reviews of vehicles in the Autoblog press fleet, reviewed by the staffers that drive them every day. Today's Daily Driver features the 2016 BMW X1, reviewed by Alex Kierstein. You can watch the video above or read a transcript below. And don't forget to watch more Autoblog videos at /videos. Show full video transcript text [00:00:00 ]Hey, everybody. I'm Senior Editor Alex Kierstein and today we're driving the 2016 BMW X1. It's replacing the old X1 and the old X1 was based on BMW's traditional rear-wheel drive platform. That meant the engine was positioned longitudinally, that's north/south in the engine bay. In this application, we've got a transversely mounted turbo charged inline four, making 228 horsepower. [00:00:30] It displaces 2.0 liters and it's part of BMW's new modular engine family. It's a nice engine. It's smooth. It sounds good and it's got a lot of power. This is a little lighter than the previous car. This one weighs 3,660 pounds versus the old X1's 3800 and some change. It's a little bit lighter. The dimensions aren't that much different. If you're wondering why it got smaller, that's because it's using a platform [00:01:00] shared with a lot of BMW's Mini products. This is really the fruition of BMW's investment in the Mini brand because now they're able to use those platforms in the engines they developed for those models in BMWs. This X1 has an 8-speed automatic transmission and it's really a pretty good trans. It kicks down quickly if you call for it to give you some power and for the most part it's smooth and kind of out of your way. [00:01:30] Where Minis are sort of raucous when you really whomp in it, this is a little more restrained. It still delivers power like many of the current turbocharged Minis out there, but there's more refinement here. I really like the external styling on this car. It's wearing this really lovely shade of dark blue and BMW's current styling language lends itself really well to this shape [00:02:00]. It looks really tidy and it's not really that complex or interesting of a shape. It's very much the traditional two-box CUV kind of exterior look and profile, but the detailing is nice. It looks sharp. It looks like a premium product and it looks like a more expensive product than a similar Mini would. BMW used to pride themselves on having simple uncluttered interfaces and even the sort of trimmed down iDrive that's in this unit [00:02:30]. Works pretty well.